Steel housing with inner square section made of light alloy with four small bores. Levers can be mounted on one or on both sides by means of bolts. Type DR-A with two or four through bores, especially constructed for transmitting alternating motions by passing the neutral axis in either direction. All metal parts are paint finished. ROSTA Rubber Suspension Unit, Type DR-A, Steel, Blue Painted, 90 mm L x 75 mm W x 75 mm H